US Bridges

US 189 over Unnamed Draw

Fair

Sublette County, Wyoming · Kemmerer-Big Piney · Structure no. FJF

Built
1987
38 years old
Condition
Fair
inspected February 2025
Type
Culvert
Steel
Length
26 ft
2 main spans
Daily traffic
818
2024 count
Owner
State
State Highway Agency

About this bridge

US 189 over Unnamed Draw is a steel culvert carrying US 189 over Unnamed Draw in Sublette County, Wyoming. It was built in 1987, so it is 38 years old, younger than the Wyoming average of 48.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 818 vehicles a day, roughly 9% of them trucks, projected to reach 1,145 by 2043. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS 189
CrossesUnnamed Draw
LocationKemmerer-Big Piney
RouteU.S. Route 189
StateWyoming
Coordinates42.32815, -110.17197
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic818 (2024)
Projected traffic1,145 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 189 over Unnamed Draw built?

It was built in 1987, making it 38 years old in 2025.

What condition is US 189 over Unnamed Draw in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2025.

How much traffic does US 189 over Unnamed Draw carry?

About 818 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is US 189 over Unnamed Draw?

The structure is 26 ft (7.8 m) long with a longest span of 11 ft (3.4 m).

Who owns US 189 over Unnamed Draw?

It is owned by the State Highway Agency.